| Company | Location | Certifications | License # |
|---|---|---|---|
| Alan J Kratochvil | — | Installer (Class I) | OS0035210 |
| Andrew B Wilson | — | Installer (Class II)Designer (Site Evaluator) | OS0006427 |
| Anthony T Spanel | — | Designer (Site Evaluator) | OS0036035 |
| Bill Bryer | — | Installer (Class II)Designer (Site Evaluator) | OS0035803 |
| Britney Beatrice Blasingame | — | Designer (Site Evaluator) | OS0038821 |
| Carter Kaleb West | — | Installer (Class I)Designer (Site Evaluator) | OS0041406 |
| Casey S Mitchell | — | Designer (Site Evaluator) | OS0033915 |
| Chansee Bay Wilson | — | Installer (Class I) | OS0036188 |
| Cody Frame | — | Designer (Site Evaluator) | OS0040330 |
| Colby D Patterson | — | Installer (Class II)Designer (Site Evaluator) | OS0032834 |
| Cole Brownie Keeth | — | Installer (Class I) | OS0040533 |
| Dalton Joseph Langham | — | Installer (Class I) | OS0041255 |
| Doyce Evens Loveday | — | Installer (Class I) | OS0034179 |
| Jackie Wayne Smith | — | Installer (Class I) | OS0039728 |
| Jerrold Mark Billington | — | Installer (Class I) | OS0035957 |
| John W Rs Gates | — | Designer (Site Evaluator) | OS0023352 |
| Joshua Scott Myers | — | Installer (Class I) | OS0040560 |
| Kaycee Renae Sebastiani | — | Designer (Site Evaluator) | OS0038844 |
| Kelton Laine Cosselmon | — | Installer (Class I) | OS0040485 |
| Lester Lee Peterson | — | Installer (Class I) | OS0034753 |
| Lorenzo Jr Akins | — | Designer (Site Evaluator) | OS0038846 |
| Paul Bryer | — | Installer (Class II)Designer (Site Evaluator) | OS0035802 |
| Thomas T Hoang | — | Installer (Class II) | OS0039139 |
| Travis Kent Childs | — | Installer (Class I) | OS0036187 |
| Whitney Danielle Hale | — | Designer (Site Evaluator) | OS0040329 |
25 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Potter County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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